Plow attachment.



C. M. CARRAWAY.

PLOW ATTACHMENT.

APPLlCAT-ION mzo JULY 20. 1915.

1,210,991. Patented J'an.2,1917.

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. J I f I A o ATTORNEY C. M. CARRAWAY.

PLOW ATTACHMENT.

APPLICATION FILED )ULY 20. I916.

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Patented Jan. 2

n w mw uvmu 2 1 9w 1 2 z 1 INVENTOR WITNESSES 6' 1 /7 Carma/Jag ATTORN EY' CHARLIE M; CARBAWAY. F SHONGALOO,' LOUISIANA.

" PLOW ATTACHMENT.

Specification of Letters Patent.

Patented d air- 2, 191? Application filed July 20, 1916. Serial No. 110,373.

To all whome't may concern Be it known. that I, CHARLIE M. CARRA- WAY, a citizen ofxthe United States, residing at Shongaloo, inthe parish of Webster and State of Louisiana, have invented a new andusefull Plow. Attachment, of which the following is a specification.

The present invention relates to an attachment. for. plows.

The object of the present invention is to provide an attachment for plows, which will causeathe plow, point to yield backwardly whenit strikes. a stump orother obstruction.

The present invention accomplishes the above-object by pivoting a plow standard on the plow beam, and: providing a two part brace between the beam and the standard, and-a spring which has peculiar connection with the brace to normallyiandyieldingly hold it open or distended, and which permits the buckling or folding of the brace when the plow standard is subjected to abnormal pressure.

The invention will be best understood from a consideration of the following detailed description, taken in connection with the accompanying drawings forming part of this specification, with the further understanding that while the drawings show a practical form of the invention, the latter is not confined to any strict conformity with the showing ofthe drawings, but: may be changed and modified so long as such changes and modifications come within the scope of the appended claims.

In the'drawings: Figure 1 is a side elevation of the usual plow, having the improvements of this invention applied thereto, and showing the parts in normal position. Fig. 2 is a similar view, showing the plow standard swung baokwardly, when brought into contact with a stump, or the like. Fig. 3 is a longitudinal vertical section, taken sub stantially centrally through the plow and the attachment thereto, the parts being in normal position. Fig. 4 is a transverse section, taken on the line 4 4: of Fig. 3, looking in thedirection of the arrow. Fig. 5 is a transverse section, taken on the line 55 of Fig. 3, showing the pivotal mounting of the plow standard on the beam, and showing the between the standard and the Fig. 6 1s a similar connection the brass and the plow beam,

. transverse grooves in and the mounting-of the spring supporting rod. F1g.7=is a detail perspective view of a portion of the brace. Fig. 8 is a detail perspective view of the stop or rest employed. 3

Fig. 9 is a detail. perspective view ofthe pivot member .us ed'for connecting the'plow standard to the plow'beam. Fig. 10 is-a detail perspective View of the spring. guiding member. Fig. 11 is-a similar view of the support for the spring and the guiding member. Fig. 12 is a like view, showing the link or lower part of the brace.

Referring to these drawings, wherein like parts are designated by similar numerals of reference throughoutthe several views, 10 designates the ordinary plow beam, having the usual handles 11 at its rear end.

A plow standard 12, made up of a pair of flat bars, carries upon its lower ends a shovel or point 18. The upper ends of the flat bars are offset outwardly from each other to'receive the ploWbeamlO therebetween. A pivot memberl l, comprising, as shown to advantagein'F1g. 9, a single length of strap metal bent'into a substantially rectangular'frame is seated on the upper side of the plow beam. .Rows of registering openings 15 are formed in the oppositesides of the pivot member to receive therethrough a pivot bolt 16, carried upon the upper'fo'rked end of the standard 12, to pivotally connect the standard to the plow beam.

A spring support or supporting member 17, best shown in Fig. 10, isseated on top of the pivot member 14. Longitudinally eX- tending slots 18 are formed in the opposite ends of the member 17 and receivetherethrough the upper ends of bolts 19, projecting from the beam 10 upwardly through the pivot member 14. Clamping nuts 20 are threaded on the bolts 19 to bind the-supporting member 17, and thepivot member 14 upon the beam 10.

The supporting member 17 is turned upwardly at its forward end, isprovided therein with a guide opening 21, and is bentifon wardly at its upper extremity to provide a lip 22. The lip 22 is secured, by a bolt'23, to a support 24:. As shown in'Fig. 11, the support 2 1 is made preferably of a length'pf strap metal bent substantially U-shaped, and has its closed end secured to the, lip 22;;by

.the bolt 23. A transverse pin 25 is carried inthe open endv of the support*21,aiid is adapted to rest in any one of'a number of theuppenface era corrugated block 26, mounted on the plow beam 10. Longitudinal adjustment of the supporting member 17 on top of the pivot member 14 moves the support 24 therewith, and the pin 25 drops into the adjacent groove in the block 26, to reinforce the guiding member 17 in all adjustments.

The standard 12 is supported in normal position, as shown in Figs. 1 and 3, by means of a brace. The brace is composed of two sections, a lever 27, and a link 28. The lever 27 is made up of a pair of arms, one of which is shown in Fig. 7, which engage against the opposite sides of the beam 10, and are pivotally connected thereto intermediate their ends by a bolt 29. The arms 27 are held from binding against the opposite sides of the beam by a bushing 30, which passes through the beam 10 about the bolt 29. Between the upper ends of the arms 27 is hinged the eye 31 of a guide rod 32, eX- tending forwardly through the opening 21 in the supporting member 17. The rear end of the rod 32 is rolled over to form the eye 31, the returned extremity forming a stop 33, against which is pressed a washer 34, by a spring 35, the latter surrounding the guide rod 32, and bearing at its forward end against the upturned part of the supporting member 17. V The support 24 receives the thrust of the spring 35 when the same is contracted. From Figs. 3 and 6, it will be noted that the eye 31 of-the guide rod encircles a bushing or sleeve 36, which lies between the upper ends of' the arms 27, and through which passes a bolt 37, pivotally connecting the arms tothe rod 32.

A stop 38, preferably of T-form has a I longitudinal slot 39 inits shank to adjustbackwardly,

ably receive a bolt 40 carried by the beam 10 near the handles. The head of the stop 38 is bent laterally to engage across the rear edges of the arms 27 when the latter are swung back into normal position.

A bolt 12 connects the lower ends of the arms 27 to the adjacent end of the link 28, and a bolt 43 connects the opposite end of the link 28 to the plow standard 12, and is so located that the link 28 is out of line with I the lever 27, when the upper end of the lever engages the stop 38. Bushings or sleeves are preferably placed about the bolts 12 and 43, and pass through the opposite ends of the link 28 to prevent binding of the parts, and atthe same time to permit the proper tightening of the bolts.

In operation, when the point or shovel 13 strikes an obstruction, as shown in Fig. 2, the point and its standard 12 are swung the brace formed by the parts 27 and 28 folding into the position shown in the brace is folded, the lever 27 I pivot bolt 29, and projects the guide rod 32 forwardly through the opening 21 in the supporting member, and

openings to compresses the spring 35. When the stand ard 12 is swung rearwardly, the handles 11 of the plow may be elevated to slightly elevate the plow and clear the obstruction.

As soon as the point or shovel 13 is freed,

r the spring 35 immediately returns the brace to its normal extended position, and proj ects the standard 12 forwardly into its usual position. The spring 35 has suflicient tension to hold the standard 12 normally in the ordinary position of plows, and to'act only when undue resistance is offered to the forward travel of the plow.

The pivot bolt 16 may be adjusted into any one of the row of openings 15;to pivotally hold the standard 12 in various angular positions to support the shovel13 at the desired angle with respect to the ground sur-' face, when theparts are in normal position.

WVhat is claimed is 1. In combination with a plow beam, and a standard, a pivotal connection for the standard mounted for longitudinal adjustment on the plow beam, a brace, hingedto the plow beam and extended above the latter and having connection with the standard, and resilient means mounted for longitudinal adjustment on and above the plow beam 7 and engaging the upper end of the brace to normally hold the standard in a forwardly swung position. j I 2. In combination with a plow beam, and a standard, a pivot member on said beam having a longitudinal row of transverse openings therethrough, a bolt carried upon the upper end of said standard and adapted for engagement in the desiredone of said pivotally and adjustably con-.

nect the standard to the beam, a brace hinged to the beam and having connection with the standard, a supporting member mounted on said pivot member and adapted for longitudinal adjustment thereon, and a spring between said supporting member and said brace to urge the latter in one direction and yieldingly hold the standard in a forwardly swung position.

3. In combination with a plow beam, and a standard having a forked end receiving the beam therethrough, a pivot memberformed of strap metal bent into substantially rectangular form and having registering rows of apertures in its opposite sides, means forsecuring the pivot member edgewise against the upper side of the beam. a pivot bolt engaging through the forked ends of the standard and through a registering pair of said apertures in the pivot member to pivotally support the standard, a brace pivoted swing the brace and the standard forwardly. i7 4. In combination with a plow beam, and

a standard, means for pivotally connecting the standard in longitudinally adjusted position upon the beam, a brace consisting of a lever pivoted to the beam and having one end projecting below the same and its opposite end projecting above the beam, and a link hinged between the lower end of saidlever and said standard, and a spring adjustably supported at one end on said beam and engaging at its opposite end against the upper end of said lever to yieldingly hold the latter and said standard in a forwardly swung position.

5. In combination with a plow beam, and a standard, means for pivotally mounting the standard on the plow beam, a brace con sisting of a lever hinged on the beam and extending above and below the same, and a link connecting the lower end of the lever to the standard, a rod hinged to the upper end of said lever, a supporting member mounted for longitudinal adjustment on said beam and having an upturned apertured portion receiving the outer end of the rod therethrough to guide the rod. a spring surrounding the rod between said supporting member and the upper end of said lever, a stop on said beam adapted for engagement with the upper end of said lever to limit the rearward swinging thereof, and means connected to the upturned end of said supporting member to support the same against the pressure of the spring.

6. In combination with a plow beam, and a standard, a pivot member seated on the upper side of the standard, a supporting member seated on the upper side of said pivot member, clamping means carried by the beam engaging the pivot member and the supporting member for binding the same together and to the beam, a brace hinged to the beam and having connection at one end with the standard, a spring interposed between the upper end of the brace and said supporting member to yieldingly hold the brace extended and the standard in a forwardly swung position, a support connected to the supporting member to reinforce the same against the pressure of the spring, and means permitting the adjustment of the supporting member and its support to vary the tension of the spring.

7. In combination with a plow beam, and a standard having a point thereon, a pivot member seated on the upper side of the beam and having a longitudinal row of openings therein, a longitudinally adjustable supporting member mounted on said pivot member and having slots therein, clamping bolts carried by the beam and engaging through the pivot member and through the slots in the supporting member, to bind the supporting member and the pivot member upon the beam, a two-part brace composed of a lever hinged to the plow beam and a link connecting the lower end of the lever to said standard, arod hinged to the upper end of said lever and extending forwardly through said supporting member, and a spring surrounding the rod between the lever and the supporting member to yieldingly hold the lever in position and project said standard forwardly.

S. In combination with a plow beam, and a standard, a pivot member on the beam, a supporting member on the pivot member, clamping bolts carried by the beam and passing upwardly through the pivot member and the supporting member to bind the same together and upon the beam, a bolt carried by the standard and adapted for adjustment upon the pivot member to adjustably connect the standard to the beam, a lever hinged intermediate its ends to the beam and having one end connected to the standard, a rod hinged to the opposite end of the lever and engaging said supporting member, a spring mounted on the rod and engaging at one end the supporting member and at its opposite end the opposite end of the lever, a U-shaped support connected at its closed end to the supporting member, a pin connecting the freeends of the support, and a block carried by the beam having transverse grooves in its upper face adapted to receive said pin therein and adjustably hold the brace upon the beam.

9. In combination with a plow beam, and a standard, means for pivotally mounting the standard on the plow beam, a lever hinged to the beam and extending above and below the same, a link connecting the lower end of the lever to the standard, a rod hinged to the upper end of said lever, a guiding means mounted on said beam and receiving the outer end of the rod therethrough to guide the rod, a spring surrounding the rod between said guiding means and the upper end of said lever, and means connected to said guiding means to support the same against the pressure of the spring.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

CHARLIE M. GARRAIVAY.

W'itnesses L. E. CROW, L. H. MORRIS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

